Home / 10,815.50-14,925.40-6,100.08

Finding the Fourth Proportional to 10,815.50, 14,925.40 and 6,100.08

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Solution

The fourth proportional to 10,815.50, 14,925.40 and 6,100.08 is: 8,418.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.50 : 14,925.40 = 6,100.08 : x
  2. Step 2: Convert to fraction form
    10,815.50/14,925.40 = 6,100.08/x
  3. Step 3: Cross multiply
    10,815.50x = 14,925.40 × 6,100.08
  4. Step 4: Simplify right side
    10,815.50x = 91,046,134.03
  5. Step 5: Solve for x
    x = 91,046,134.03/10,815.50
  6. Step 6: Final answer
    x = 8,418.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.